Hi,
I was testing some expressions and found some problems.
Below in the example is a concurrent-iterator expression.
I get the following errors:
ruby SubProcessTest.rb SubProcessTest.rb:58: syntax error, unexpected
tSYMBEG, expecting kDO or '{' or '('
concurrent-iterator :on_value =>"companyA, companyB,
companyC" ,:to_field =>"company" do
^
SubProcessTest.rb:58: syntax error, unexpected ',', expecting kEND
concurrent-iterator :on_value =>"companyA, companyB,
companyC" ,:to_field =>"company" do
^
SubProcessTest.rb:58: syntax error, unexpected kDO, expecting kEND
SubProcessTest.rb:73: syntax error, unexpected kEND, expecting $end
What is wrong ? In the documentation the concurrent-iterator
expression is used in the same way (http://openwferu.rubyforge.org/
patterns.html#pat_13_multiple_instances_with_a_priori_design_time_knowledge ).
I have also some other problems with the iterator expression.
The version which is used in the example is OK, it works as expected.
But if i use a more dynamic version which is discussed in the
documentation
iterator :on_value => "${f:participant_list}", :to_variable => "p" do
participant "${p}"
end
nothing will happend (no iteration will take place) --> I think
somethink is wrong with the
:on_value => "${f:participant_list}" construct.
In my example if I use the dynamic dollor construct "${f:comp}" it
should work:
iterator :on_value => "${f:comp}", :to_variable =>"next_participant"
do
_if do
equals :field_value => "$
{next_participant}", :other_value => "bob"
# then
companyDefiner
# else
supplier :supplierName => "${next_participant}"
end
end
But no iteration will take place. What is wrong with that ?
Are somewhere some examples using complex dollor notations to access
a value in a complex workitem attribute ( a array of hash maps )
within the process definition ( usefull in "if", "case", ...
expressions ) ?
Best regards
Andreas
example:
--------------------------------------------
#!/usr/bin/env ruby
require 'rubygems'
require 'openwfe/def'
require 'openwfe/workitem'
require 'openwfe/engine/engine'
require 'openwfe/extras/participants/sqsparticipants'
require 'openwfe/extras/listeners/sqslisteners'
require 'openwfe/expressions/raw_prog'
require 'openwfe/tools/flowtracer'
#
# instantiating an engine
engine = OpenWFE::Engine.new
#
# adding some participants
engine.register_participant :companyDefiner do |workitem|
puts "put some companies to workitem..."
workitem.companyDefiner_companies =
"companyA,companyB,companyC,companyD, companyE"
workitem.companyDefiner_processInfos = [{"a"=>"1", "b"=>"2"},
{"a"=>"4", "b"=>"8"}, {"a"=>"3", "b"=>"9"},{"a"=>"9", "b"=>"15"},
{"a"=>"23", "b"=>"34"}]
workitem.attributes = {"field1" => ['4','3','5','9']}
end
engine.register_participant :supplier do |workitem|
puts "supplier got a workitem..."
puts workitem.lookup_attribute("params.supplierName")
puts workitem.lookup_attribute("field1.1")
end
class MainProcessDefinition0 < OpenWFE::ProcessDefinition
sequence do
companyDefiner
iterator :on_value => "x , y, z", :to_variable
=>"next_participant" do
_if do
equals :field_value => "$
{next_participant}", :other_value => "bob"
# then
companyDefiner
# else
supplier :supplierName => "${next_participant}"
end
end
concurrent-iterator :on_value =>"companyA, companyB,
companyC" ,:to_field =>"company" do
subprocess :ref => "supplierCommunication", :company => "$
{company}"
end
end
process_definition :name => "supplierCommunication" do
sequence do
supplier
end
end
set :field =>"comp", :value => "alice, bob, charly"
set :field =>"testfield", :value =>"testvalue"
end
li = OpenWFE::LaunchItem.new(MainProcessDefinition0)
#OpenWFE::trace_flow(MainProcessDefinition0)
li.initial_comment = "please give your impressions about http://ruby-lang.org";
fei = engine.launch(li)
engine.wait_for fei
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